I love this discussion. When younger, with more energy for the soap box & less experience of the world of food I used to get very excited about the proper way to make Lebanese tabouli etc and the proper way to make a bunch of Italian recipes as these were taught to me by immigrant neighbours and were THE ONLY WAY these foods should be made. No deviation ever.
I used to see “tabouli” in various kebab shops and scoff.
Eventually I learned that every region of Italy, probably every village, has its own take on a pork ragu or whatever the local favourite pasta dish etc. and the same thing with the Middle East. Most of my Arab friends are from Lebanon so I had no clue the Turks take on a parsley & grain salad was so different.
Now as I approach my 40th year of cooking & obsessing about food, I have no true respect for authentic as it’s just the opinion of that group of people.
Just today I was reading an article titled “Everything I, an Italian, thought I knew about Italian food is wrong”.
I recommend you all go have a look. Fascinating.